生物量金字塔
- 网络Pyramid of biomass;biomass pyramid
生物量金字塔-
纯林中马尾松的干生物量基本上为金字塔形，枯枝生物量所占比例为1.75%，而混交林中为4.20%。
The stem biomass of Pinus in the pure forest was of pyramid shape and the deadwood biomass accounted for 1.75 % , but 4.20 % in the mixed forest .
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草层结构合理，地上生物量与地下生物量呈金字塔型分布。
The structure of canopy was reasonable , the distribution shape ofaboveground and below ground biomass liked pyramid .